Combined siphon sink-strainer and waste-pipe cleaner.



B. P. SMITH.

COMBINED SIPHON SINK STRAINER AND WASTE PIPB'GLBANER.

APPLICATION FILED M'ARJQ, 1910.

Patented Mar. 14, 1911.I

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UNITED sTATEs PATENT oEEIoE.

BERNARD P. SMITH, 0F ST. LOUIS, MISSOURI.

COMBINED SIPI-ION SINK-STRAINER AND WASTE-PIPE CLEANER.

Specification of Letters Patent.

Patented Mar. 14, 1911.

Application filed March 19, 1910. Serial'No. 550,384.

To all whom it may concern:

Be it known that I, BERNARD P. SMITH, a citizen of the United States, and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Combined Siphon Sink-Strainers and Waste-Pipe Cleaners, of which the following is a specification containing a full, clear, and eXact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relatesto improvements in combined siphon sink strainers and waste pipe cleaners, the object of my invention being to construct a substantially U-shaped, tubular device arranged to be placed in a sink over the waste pipe, one of the legs of the tubular device being larger than the other leg and provided with a yielding base so as to form an air and water tight joint over t-he waste pipe, said tubular device arranged to act as a siphon to conduct the water in a defined path over the waste pipe from the sink.

A further object of my invention is to provide a device of the class described with an attachment whereby the same may be Connected with a service-cock so that water under pressure may be forced through the device and through the waste pipe.

For the above purposes my invention consists in certain novel features of construction and arrangement of parts as will be hereinafter more fully described, pointed out in the claims and illustrated by the accompanying drawing, in which:

Figure l is a sectional view illustrating my invention as applied to the waste pipe of a sink and connected with a service-'cock for forcing an opening through the waste pipe; Fig. 2'is an illustration similar to Fig. l and shows the connection with the,

service-cock removed and the device applied for use as a Siphon sink strainer; and Fig. 3 is a plan of the complete strainer removed from the sink.

Referring by numerals to the accompanying drawing: l designates a sink, 2 the waste pipe therefrom, 3 the ordinary sink strainer over the top of the waste pipe and 4.- the ordinary service-cock.

5 designates a substantially U-shaped hollow shell preferably cast in one piece, the leg 6 of which is of a size sufficient to cover the opening over the waste pipe and is provided with a yielding base 7 arranged to form an air and water tight joint between the leg 6 and the body of the sink around the waste pipe opening.

8 designates the smaller leg of the shell which terminates a slight distance above the bottom of the sink or in a plane above the lower face of the base 7. The leg 8 is in.- ternally threaded adjacent its bottom and a perforated cap 9 is threaded thereto. The cap 9 is provided with an integral bowlshaped extension l0 which is designed to prevent larger particles of waste matter from entering in the space between the cap 9 and sink.

Within the shell at a point between the legs 6 and 8 is a plug seat 1l, and arranged centrally in the top of the shell over the leg 8 is a plug seat 12, the upper portion of which is tapered and of a size corresponding with the largest portion of the seat ll, while the lower portion of the seat is internally threaded.

13 designates a plug which may be seated in either plug seat 1l or 12.

lll designates a plug having an opening 15 therethrough to which is secured a flexible hose section 1G which is arranged for attaclr ment with the service-cock 4. As shown the plug 14 is provided with a tapering portion arranged to seat in the upper portion of the plug seat l2 and with a threaded portion arranged to seat in the threaded portion of the plug seat l2.

lhen the device is used as a siphon sink strainer the plug 14 is removed and the plug 13 is inserted in the seat l2. In this condition the device is placed over the waste pipe opening and the sink is filled or partially filled with water. To start the water flowing through the device water is applied to the sink in a quantity sufficient to overfiow the connection between the legs of the device and air, which was compressed in the device by filling up the smaller leg with water from the sink, is released by a temporary removal of the plug from the seat l2, or the siphon may be started by simply lifting one side of the whole device from over the'sink opening, thus permitting water to start through the waste pipe, which flowing water through the waste pipe creates suiiicient suction t-o draw the water into and through the siphon. After the siphon is sufliciently started the plug is again seated and the water will continue to flow through the device from the sink to and through the waste pipe.

If the-waste pipe is clogged so that water will not flow as readily therethrough as when the deviee is employed as a Siphon the plug lC- is ISeated in. the plug seat ll between the legs ot the Siphon and the plug lilif; Seated in the Seat i2 and the hose section attaehed to the service-Coeli. fln this condition the device is placed over the waste pipe openingl and when the Service-cook is opened the water under pressure will be foreed through the Wafste pipe thus removing the n'iatte'rclogging the pipe.

While I have shown and described the eap 9 as having an integral bond-shaped exten- Sion to prevent large particles of inatter from entering between the eap S) and the Sink I do not Wish to be understood as liniiting myself to a eap provided 'with such an extension.

1I: claim:

l. In a device of the class described, a substantially Uehaped, hollow shell, one leg of which ie pro-vided with a yielding base, the oppoeite tern'iinatingl in a plane a alight` distance above the bottom of the yielding base, a plug .seat within the lshell be'ween said legs and a plug Seat in the shell over the top of the leg having the yielding base and a plug arranged to be seated in one or the other of said plug' seats.

2. In a device of the class described, the combination of a snbetantially U-shaped7 hollow Shell, one leg of which is provided Wit-h a yielding base and the opposite leg being provided with a detachable, perforated cap, said last mentioned leg terminating in a plane above the bottom of the yielding base,

a plug seat within the shell between the lege provided with a yielding base, a, plug detaehably arranged in the first mentioned seat, a hollow plug del'aeliably Seated in the Second i'i'ientioned seat and means for ilexibly conneetlng the hollow plug with a source of water Supply.

3. ,In a device ot' the class deseribed, a hollow Shellv eon'iprieing two legs oi substantially the Isaine .lengtl'n a plug Seat in one of said legs] a -plng seat within the shell between said legs and a plug arranged to be seated in one. or the other of Said plug seats.

Il. A Combined Siphon Sink strainer and waste pipe cleaner, a Substantially U- shaped, nietallie Shell, having legs of unequal diametersI and lengthe, the larger leg heilig provided with a yielding base arranged to be fitted over a waste pipe opening, the smaller leg being Iprovided with a detachable, perforated cap, a plug seat intermediate the ende of the shell7 a plug Seat over the larger' .leg oi" the Shell, a detachable plug in the first nientii'lned seat, a detachable plug in the second mentioned seat, and a exible connection with. said last mentioned plug and a source of water supply.

1n testiinony whereof, I have signed my naine to this speeitieation, in presence of two Subscribing witnesses.

BERNARD P. SMITH.

fitnesses E. E. LONGAN, E. L. W ALLACE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patent,

Washington, D. C." 

